mui / mui/material-ui

[joy-ui][Select] Scroll-jumping when clicking Select element in responsive mode

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#39,113 10 comments 2 reactions 1 assignee View on GitHub

@siriwatknp is already working on this.

Since Sep 25, 2023.

on hold package: joy-ui scope: select type: bug
Dominant language
JavaScript
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Description

Duplicates
  • I have searched the existing issues
Latest version
  • I have tested the latest version
Steps to reproduce 🕹

Link to live example:

https://streamable.com/7854lm

Steps:

  1. Create a Select element with Options.
  2. Turn on responsive mode w/ Touch Actions in Firefox / Chromium
  3. Give/Allow the Select element a width greater than ~60vw. 100vw is best as it scales.
  4. Ensure that the vertical viewport is long enough to enable scrolling
  5. Ensure that the Select element has a large offset from the top
  6. Scroll down to the Select element
  7. Click the Select element and notice the following
    a. The scroll will jump upwards depending on the set width
    b. On chromium the width will cause an overflow and a horizontal scrollbar will appear EVEN THOUGH NO ELEMENTS ARE OVERFLOWING
    ba. For some reason with a setting of "overflow-x: hidden" on the HTML element on Firefox the horizontal scrollbar will appear as well
    bb. For fun, if you highlight the element in DevTools and cause a re-calculation it will slowly return back to normal
const _Main = () =>
    <>
        <div style={{ height: "600px" }} />
        <Select defaultValue="dog">
            <Option value="dog">Dog</Option>
            <Option value="cat">Cat</Option>
        </Select>
        <div style={{ height: "600px" }} />
    </>

(For me only) 8. Spend countless hours trying to understand what the heck is going on.

The issue comes back to the Touch Actions. Turning it off resolves the issue. Would love to know what causes this though.

I chalked it up to the horizontal overflow appearing and rapidly disappearing, causing the jump in the vertical positioning. If that makes sense. Mainly because the size of the jump depended on the width of the element.

If it means anything it seems to follow the formula of: bodyScrollWidth = selectElementWidth * 1.5 - 29. With a viewport of 387 x 878.
The element had a height of 28 (+2 from border). So, not sure where the 29 or 1.5x comes from. But I was always able to predict what the scrollWidth would be using this formula

Current behavior 😯

Firefox:

  • Jump occurs immediately.
  • Horizontal scrollbar only appears if HTML element has overflow-x: hidden

Chromium:

  • Jump occurs after closing menu
  • Horizontal scrollbar appears
Expected behavior 🤔

Should be normal

Context 🔦

In the video I actually tested this using the MUI website to confirm it wasn't something strange in my environment.

I just hope someone else doesn't fall into this issue and waste a bunch of hours like I did.

Your environment 🌎
I used the MUI website as seen in the video and tested on Firefox + Chromium

Firefox: 113.0.1 (64-bit)

Chromium: 117.0.5938.88 (Official Build) snap (64-bit)

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